Product Description
MAHLE G31907 air intake (grid) heater gasket restores OE-tight sealing on 2006–2010 GM 6.6L Duramax LBZ/LMM. Built to MAHLE standards for heat-cycle durability and clamp-load retention, this direct-fit gasket helps prevent boost leaks and soot tracking at the intake heater plate—ideal for daily drivers, tow rigs, and fleet maintenance.
Fitment
- 2006–2010 Chevrolet Silverado/GMC Sierra HD with 6.6L Duramax LBZ/LMM
- Direct-fit for the intake heater/plate interface. Verify model year/engine code.
What’s Included
- (1) Air intake heater gasket (sold individually). Some services require two; inspect during disassembly.
Cross-Reference / OE Numbers
- GM/ACDelco: 98053991 (replaces 97374209)
- MAHLE: G31907
Related MAHLE Items (Internal Links)
- MAHLE MS19403 Intake Manifold Gasket – 06–10 LBZ/LMM
- MAHLE MIS19403 Intake Manifold Installation Kit – 06–07 LLY/LBZ
- MAHLE F31910 EGR Valve Gasket – 06–10 LBZ/LMM
- MAHLE F31912 EGR Valve Gasket – 06–10 LBZ/LMM
- MAHLE GS33678 Turbo Mounting Gasket Set – 01–10 Duramax
- MAHLE VS50439 Valve Cover Gasket Set – 04.5–10 LLY/LBZ/LMM
Why MAHLE
- OE-grade materials for long service life
- Direct-fit geometry to speed installs and reduce rework
- Trusted sealing performance in demanding diesel use
Installation Notes
- Clean mating surfaces; install gasket dry unless service info specifies otherwise
- Evenly torque fasteners to spec; recheck after heat cycle if required
- Inspect intake heater/plate for flatness and carbon buildup before reassembly
FAQ
Does G31907 fit both LBZ and LMM?
Yes. It’s listed for 2006–2010 LBZ/LMM applications.
Do I need one or two gaskets?
The gasket is sold individually. Some services require two—verify during teardown.
What’s the UPC/GTIN?
027067721266.
Specifications for Mahle G31907
| Attribute | Value |
|---|---|
| Brand | MAHLE |
| Part Number | G31907 |
| UPC / GTIN | 027067721266 |
| Shipping Info | Ships from CPP Diesel; shipping calculated at checkout. Typical lightweight gasket (see product page for package dims). |
| Country of Origin | Not specified |
| Prop 65 | WARNING: This product can expose you to chemicals including lead compounds, known to the State of California to cause cancer and birth defects or other reproductive harm. |
